// zhichu.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

int main(int argc, char* argv[])
{double a,b,c;
scanf("%lf %lf",&a,&b);
if(a>b)
{c=a;}
else{c=b;}
	printf("%.2lf\n",c);

	return 0;
}

